OOP – Part 14 ABC Abstract Base Class

# ----------------------------------------------------------------
# -- Object Oriented Programming => ABCs => Abstract Base Class --
# ----------------------------------------------------------------
# - Class Called Abstract Class If it Has One or More Abstract Methods
# - abc module in Python Provides Infrastructure for Defining Custom Abstract Base Classes.
# - By Adding @absttractmethod Decorator on The Methods
# - ABCMeta Class Is a Metaclass Used For Defining Abstract Base Class
# --------------------------------------------------------------------

from abc import ABCMeta, abstractmethod

class Programming(metaclass=ABCMeta):

  @abstractmethod
  def has_oop(self):

    pass

  @abstractmethod
  def has_name(self):

    pass

class Python(Programming):

  def has_oop(self):

    return "Yes"

class Pascal(Programming):

  def has_oop(self):

    return "No"

  def has_name(self):

    return "Pascal"

one = Pascal()

print(one.has_oop())
print(one.has_name())